Learn how group dynamics influence individual actions in crowds. Vocabulary in this post collective adjective /kəˈlɛktɪv/ Formed by gathering or collecting; gathered into a mass, sum, or body; congregated or aggregated Examples: "the collective body of a nation" behavior noun [bɪˈheɪvjə] [bɪˈheɪvjɚ] Observable response produced by an organism. Examples: "The child's behavior in class was disruptive. " conformity noun /kənˈfɔːmɪti/ /kənˈfɔɹmɪti/ The state of being conforming, of complying with a set of rules, with a norm or standard. Examples: "In many schools, there is pressure on students for conformity in dress and behavior. " anonymity noun /ænəˈnɪmɪti/ The quality or state of being anonymous; anonymousness. Examples: "The online forum offered a space for anonymity, allowing people to share their opinions without fear of being identified. " contagion noun /kənˈteɪdʒən/ (by extension) the spread of anything harmful, as if it were such a disease Examples: "The contagion of negativity spread quickly through the office after the company announced budget cuts. " mob noun /mɒb/ /mɑb/ A large or disorderly group of people; especially one bent on riotous or destructive action. Examples: "The angry mob of students surrounded the principal's office, demanding answers about the unfair test. " influence noun /ˈɪn.flu.əns/ The power to affect, control or manipulate something or someone; the ability to change the development of fluctuating things such as conduct, thoughts or decisions. Examples: "I have absolutely no influence over him." groupthink noun /ˈɡɹuːpθɪŋk/ A process of reasoning or decision-making by a group, especially one characterized by uncritical acceptance of or conformity to a perceived majority view. Examples: "The project failed because of groupthink; no one wanted to challenge the boss's idea, even though it was clearly flawed. "